Atomic struture of a Na(super +)-and K(super +)-conducting channel
Article Abstract:
Crystal structures of the NaK channel from Bacillus cereus, a non-selective tetrameric cation channel, in its Na(super +)-and K(super +)-bound states is presented. It is concluded that the sequence of the NaK selectivity filter resembles that of a cyclic nucleotide gated channel and its structure may represent that of a cyclic nucleotide-gated channel pore.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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A subfemtotesla multichannel atomic magnetometer
Article Abstract:
The magnetic field sensitivity of 0.54 fT Hz(super -1/2) with a measurement volume of only 0.3 cm3 is demonstrated using a new spin-exchange relaxation-free (SERF) atomic magnetometer. The simple multichannel operation of the magnetometer, and localization of magnetic field sources with a resolution of 2mm is presented.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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Measurement of femtometre-scale atomic displacements by X-ray absorption spectroscopy
Article Abstract:
The study shows that magnetostriction can be detected by differential X-ray absorption. The magnitude of the recorded signal relative to the noise shows a sensitivity of mean differential atomic motion of one femtometer which is factor of 100 times more sensitive than that normally available.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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